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Forming cell cluster regulates glucose-stimulated insulin gene expression and promotes insulin secretion in pancreatic beta cell

机译:形成的细胞团调节葡萄糖刺激的胰岛素基因表达并促进胰腺β细胞中胰岛素的分泌

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In summary, the formation of pancreatic β-cell spheroids influence the insulin gene expression. Relative to monolayer, clusters has higher stimulation-index and lower constitutive insulin release. Besides, Cx36 protein plays an important role in the regulating pathway. In low glucose condition, the RNA expressions of clusters showed that most genes previously activated in monolayers were downregulated. The expressions of Ins1, Pdx1 and MafA were further upregulated for clusters under high glucose environment. This study reveals that cell coupling regulates glucose-stimulated insulin gene expression to promote insulin secretion in mouse β-cells. Moreover, cell aggregation also enhances in vivo performance of β-cells.
机译:总之,胰腺β细胞球体的形成影响胰岛素基因表达。相对于单层,簇具有更高的刺激指数和更低的组成型胰岛素释放。此外,Cx36蛋白在调节途径中也起着重要作用。在低葡萄糖条件下,簇的RNA表达表明大多数先前在单层中激活的基因被下调。在高葡萄糖环境下,Ins1,Pdx1和MafA的表达进一步上调。这项研究表明,细胞偶联调节葡萄糖刺激的胰岛素基因表达,从而促进小鼠β细胞中胰岛素的分泌。此外,细胞聚集还增强了β细胞的体内性能。

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